Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 28, Issue 29, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202200222
Keywords
all-polymer solar cells; electron-deficient building blocks; narrow bandgap; polymer acceptors; power conversion efficiency
Categories
Funding
- Songshan Lake Materials Laboratory [2021SLABFK03]
- National Natural Science Foundation of China [21774055, 22005135]
- Shenzhen Basic Research Fund [JCYJ20180504165709042, JCYJ20190809162003662]
- Guangdong Provincial Key Laboratory Program from the Department of Science and Technology of Guangdong Province [2021B1212040001]
- Guangdong Basic and Applied Basic Research Foundation [2021A1515011640]
- Center for Computational Science and Engineering at Southern University of Science and Technology
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All-polymer solar cells have shown excellent mechanical flexibility and device stability compared to other organic solar cells. This review summarizes the recent progress of polymer acceptors based on electron-deficient building blocks, and discusses the structure-property correlations and the development of new building blocks for efficient all-polymer solar cells.
All-polymer solar cells (all-PSCs) have attracted considerable attention owing to their pronounced advantages of excellent mechanical flexibility/stretchability and greatly enhanced device stability as compared to other types of organic solar cells (OSCs). Thanks to the extensive research efforts dedicated to the development of polymer acceptors, all-PSCs have achieved remarkable improvement of photovoltaic performance, recently. This review summarizes the recent progress of polymer acceptors based on the key electron-deficient building blocks, which include bithiophene imide (BTI) derivatives, boron-nitrogen coordination bond (B <- N)-incorporated (hetero)arenes, cyano-functionalized (hetero)arenes, and fused-ring electron acceptors (FREAs). In addition, single-component-based all-PSCs are also briefly discussed. The structure-property correlations of polymer acceptors are elaborated in detail. Finally, we offer our insights into the development of new electron-deficient building blocks with further optimized properties and the polymers built from them for efficient all-PSCs.
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